Add 20/70 and 12/49
20/70 + 12/49 is 26/49.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
20/70 = 20 × 7/70 × 7 = 140/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
12/49 = 12 × 10/49 × 10 = 120/490 - Add the two like fractions:
140/490 + 120/490 = 140 + 120/490 = 260/490 - 260/490 simplified gives 26/49
- So, 20/70 + 12/49 = 26/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/70+12/49 20/70+24/49 20/70+12/98 60/70+12/49 20/70+36/49 20/70+60/49 20/70+84/49